<!--父级组件：控制除登录页以外所有页面 的共有头部与左侧菜单栏-->
<template>
<div style="display: flex;">
  <div  :style="{width:(isCollapse ? '64px':'208px')}">
<!-- 左侧菜单   -->
    <el-menu
    background-color="#3C82F5"
    style="width: 100%;height: 100vh;"
    text-color="#fff"
    active-text-color="#ff0"
    unique-opened
    :collapse="isCollapse"
    :collapse-transition="false"
    router
    >
<!-- 左侧菜单栏顶部条     -->
      <el-row style="padding-top: 10px;">
       <el-col :span="2"></el-col>
       <el-col :span="7" style="padding-left: 8px;">
         <el-avatar src="/imgs/admin/logo.png" style="width: 35px;height: 35px"></el-avatar>
       </el-col>
       <el-col :span="isCollapse ? 0 : 13">
         <span style="color: #fff;font-weight: bold;position: relative;top:8px;left:2px;">智慧车辆</span>
       </el-col>
      </el-row>

      <el-sub-menu index="1">
        <template #title>
          <el-icon style="font-size: 21px;"><User/></el-icon>
          <span>用户管理</span>
        </template>
        <el-menu-item index="/user">用户列表</el-menu-item>
      </el-sub-menu>

      <el-sub-menu index="2">
        <template #title>
          <el-icon style="font-size: 21px;"><Van/></el-icon>
          <span>车辆管理</span>
        </template>
        <el-menu-item index="/vehicle">基本信息</el-menu-item>
      </el-sub-menu>

      <el-sub-menu index="3">
        <template #title>
          <el-icon style="font-size: 21px;"><Place/></el-icon>
          <span>调度管理</span>
        </template>
        <el-menu-item index="/application">申请列表</el-menu-item>
        <el-menu-item index="/audit">调度审核</el-menu-item>
        <el-menu-item index="/distribute">车辆分配</el-menu-item>
      </el-sub-menu>

      <el-sub-menu index="4">
        <template #title>
          <el-icon style="font-size: 21px;"><Location/></el-icon>
          <span>电子围栏</span>
        </template>
        <el-menu-item index="/geofence">围栏管理</el-menu-item>
      </el-sub-menu>

      <el-sub-menu index="5">
        <template #title>
          <el-icon style="font-size: 21px;"><MessageBox/></el-icon>
          <span>数据字典</span>
        </template>
        <el-menu-item index="/dict">字典管理</el-menu-item>
      </el-sub-menu>
    </el-menu>
  </div>
  <div  :style="{width:(isCollapse ? 'calc(100% - 64px)' : 'calc(100% - 208px)')}">
<!--右侧顶部条-->
<el-header style="height: 12vh;background-color: #fff;padding-top:22px;">
  <el-row >
   <el-col :span="18">
    <el-icon style="font-size: 21px;" @click="changeCllopsed"><Expand/></el-icon>
   </el-col>
   <el-col :span="6" style="position: relative;">
     <el-dropdown trigger="click" style="position: absolute;right:20px;">
    <span style="font-size: 19px;font-weight:bold;">
      {{user.username}}
      <el-icon ><arrow-down /></el-icon>
    </span>
       <template #dropdown>
         <el-dropdown-menu>
           <el-dropdown-item @click="logout">退出登录</el-dropdown-item>
         </el-dropdown-menu>
       </template>
     </el-dropdown>
   </el-col>
  </el-row>
<!-- 右部顶部条 面包屑导航 -->
  <el-breadcrumb separator="/" style="position: relative;top: 20px;">
    <el-breadcrumb-item >首页</el-breadcrumb-item>
<!--<el-breadcrumb-item>用户管理</el-breadcrumb-item>
    <el-breadcrumb-item>用户列表</el-breadcrumb-item>-->
<el-breadcrumb-item v-for="item in breadcrumb">{{item}}</el-breadcrumb-item>
  </el-breadcrumb>
</el-header>
    <el-main style="height: 88vh;padding: 0;overflow-y: auto;">
      <!--右侧可变区域-->
      <router-view/>
    </el-main>
  </div>
</div>
</template>

<script setup>
import { onMounted,ref } from "vue";
import { useRoute,useRouter} from "vue-router";

//定义变量用来控制是否折叠
const isCollapse = ref(false);
//定义处理左侧菜单栏折叠的方法
const changeCllopsed = () => {
  isCollapse.value = !isCollapse.value;
};
//获取当前登录的用户数据
const user=ref(getUser());
//定义退出登录的方法
const logout = () => {
  if (confirm('确定要退出登录吗？')){
    localStorage.removeItem('user');
    //跳转到登录页面
    window.location.href = '/login';
    //退出登录后清空user对象数据
    user.value='';
  }
}
const breadcrumb = ref(['用户哈哈','用户嘻嘻']);
let map={
  '/user':['用户管理','用户列表'],
  '/vehicle':['车辆管理','车辆列表'],
  '/application':['调度管理','申请列表'],
  '/audit':['调度管理','调度审核'],
  '/distribute':['调度管理','车辆分配'],
  '/geofence':['围栏管理','电子围栏'],
  '/dict':['字典管理','数据字典'],
  '/geofenceMap':['围栏管理','围栏绘制']
};
const route=useRoute();
const updateBreadcrumb=(route)=>{
  const path=route.path;
  breadcrumb.value=map[path];
}
onMounted(()=>{
  updateBreadcrumb(route);
})
const router=useRouter();
router.beforeEach((to,from,next)=>{
  updateBreadcrumb(to);
  next();
})
</script>
